Home / 39,188.45-54,080.21-21,283.74

Finding the Fourth Proportional to 39,188.45, 54,080.21 and 21,283.74

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Solution

The fourth proportional to 39,188.45, 54,080.21 and 21,283.74 is: 29,371.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,188.45 : 54,080.21 = 21,283.74 : x
  2. Step 2: Convert to fraction form
    39,188.45/54,080.21 = 21,283.74/x
  3. Step 3: Cross multiply
    39,188.45x = 54,080.21 × 21,283.74
  4. Step 4: Simplify right side
    39,188.45x = 1,151,029,022.37
  5. Step 5: Solve for x
    x = 1,151,029,022.37/39,188.45
  6. Step 6: Final answer
    x = 29,371.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.